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We propose an experiment to search for QCD axion and axion-like-particle(ALP) dark matter. Nuclei that are interacting with the background axion darkmatter acquire time-varying CP-odd nuclear moments such as an electric dipolemoment. In analogy with nuclear magnetic resonance, these moments causeprecession of nuclear spins in a material sample in the presence of an electricfield. Precision magnetometry can be used to search for such precession. Aninitial phase of this experiment could cover many orders of magnitude in ALPparameter space beyond the current astrophysical and laboratory limits. Andwith established techniques, the proposed experimental scheme has sensitivityto QCD axion masses m_a < 10^-9 eV, corresponding to theoreticallywell-motivated axion decay constants f_a > 10^16 GeV. With furtherimprovements, this experiment could ultimately cover the entire range of massesm_a < 10^-6 eV, complementary to cavity searches.

Cosmic Axion Spin Precession Experiment (CASPEr)